Generate a high quality waveform image from an audio file for Mac OS.
$30-250 USD
クローズ
投稿日: 9年近く前
$30-250 USD
完了時にお支払い
Generate a high quality waveform image from an audio file.
Must be able to convert audio files (.wav, .mp3, etc.) into high quality file for large professional printing. Prefer to convert to both .png and .psd for editing purposes.
Either Mac OS software or HTML program are acceptable.
This type of code exists, but it has limitations and does not provide high enough quality printing. (Example: 24x72in)
Even after increasing the width and height in the sample code, the image was still blurry when enlarged.
Ideally, to create a program where the audio file was loaded and an output source was selected and saved to a specified location.
*Note: Sample images are not the quality desired.
Sample html code from Transloadit: ([login to view URL])
<html>
<head><title>Some demo title</title></head>
<body>
<form action="/uploads" enctype="multipart/form-data" method="POST">
<input type="file" name="my_file" multiple="multiple" />
</form>
<script src="//[login to view URL]"></script>
<script src="//[login to view URL]"></script>
<script type="text/javascript">
$(function() {
$('form').transloadit({
wait: true,
triggerUploadOnFileSelection: true,
params: {
auth: { key: "YOUR-AUTH-KEY" },
steps: {
mp3: {
use: ":original",
robot: "/audio/encode",
preset: "mp3"
},
waveform: {
robot: "/audio/waveform",
use: "mp3",
width: 300,
height: 200,
background_color: "ffffffff",
outer_color: "ff0000aa",
center_color: "660000aa"
}
}
}
});
});
</script>
</body>
</html>
Hi, I am a Mac OS developer.
I worked a lot with audio processing (created audio units for OS X) and CoreImage, and can create an app that generates an waveform image for a file - you can drag a file onto the app and get an image.
How large the image should be for "professional printing" - What are the requirements for resolution?
The audio files are mostly songs (i.e. 5-10 mins long)? or just short audio signals?
Do you need any controls on the app?